Finding the Fourth Proportional to 318,942.88, 478,413.76 and 94,306.08
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Solution
The fourth proportional to 318,942.88, 478,413.76 and 94,306.08 is: 141,458.95
Step by Step Solution
- Step 1: Write the proportion equation
318,942.88 : 478,413.76 = 94,306.08 : x - Step 2: Convert to fraction form
318,942.88/478,413.76 = 94,306.08/x - Step 3: Cross multiply
318,942.88x = 478,413.76 × 94,306.08 - Step 4: Simplify right side
318,942.88x = 45,117,326,323.66 - Step 5: Solve for x
x = 45,117,326,323.66/318,942.88 - Step 6: Final answer
x = 141,458.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.